/// <summary>Restores black pixels to a rendered bitmap</summary>
/// <param name="bmp">Rendered bitmap to get restored</param>
/// <param name="origBmp">Original bitmap</param>
public Bitmap RestoreBlackPixels(Bitmap origBmp, Bitmap bmp)
{
CLbmpSrc.WriteBitmap(origBmp);
CLimgFinal1.WriteBitmap(bmp);
kernelRestoreBlackPixels.Execute(new CLCalc.Program.MemoryObject[] { CLcfgVars, CLbmpSrc, CLimgFinal1, CLimgFinal2 }, new int[] { bmp.Width, bmp.Height });
return(CLimgFinal2.ReadBitmap());
}
/// <summary>Shades a bitmap</summary>
/// <param name="bmp">Bitmap to shade</param>
/// <param name="bmp">Actually render?</param>
/// <returns></returns>
public void Shade(Bitmap bmp, PictureBox pb, bool doRender)
{
Bitmap bmp2 = new Bitmap(bmp.Width, bmp.Height);
Graphics g = Graphics.FromImage(bmp2);
g.DrawImage(bmp, 0, 0, bmp.Width, bmp.Height);
//draws points onto thresholded bitmap
for (int i = 0; i < Colors.Count; i++)
{
if (Points[i].Count > 1)
{
g.DrawLines(new Pen(Color.Black, 2), Points[i].ToArray());
}
}
#region Initializations
if (CLbmpSrc == null || CLbmpSrc.Width != bmp.Width || CLbmpSrc.Height != bmp.Height)
{
CLbmpSrc = new CLCalc.Program.Image2D(bmp2);
CLbmpThresh = new CLCalc.Program.Image2D(bmp);
CLthreshInfo = new CLCalc.Program.Variable(typeof(byte), bmp.Width * bmp.Height);
CLbmpStroke = new CLCalc.Program.Image2D(bmp);
CLbmpDists = new CLCalc.Program.Image2D(bmp);
CLimgFinal1 = new CLCalc.Program.Image2D(new Bitmap(bmp2.Width, bmp2.Height));
CLimgFinal2 = new CLCalc.Program.Image2D(new Bitmap(bmp2.Width, bmp2.Height));
CLTotalPixWeight = new CLCalc.Program.Variable(typeof(float), bmp.Width * bmp.Height);
lastPixWeight = new float[bmp.Width * bmp.Height];
CLWeight = new CLCalc.Program.Variable(typeof(float), bmp.Width * bmp.Height);
lastImage = new Bitmap(bmp.Width, bmp.Height);
}
else
{
CLbmpSrc.WriteBitmap(bmp2);
CLimgFinal1.WriteBitmap(new Bitmap(bmp2.Width, bmp2.Height));
CLimgFinal2.WriteBitmap(new Bitmap(bmp2.Width, bmp2.Height));
kernelinitTotalWeight.Execute(new CLCalc.Program.MemoryObject[] { CLTotalPixWeight }, new int[] { CLbmpSrc.Width, CLbmpSrc.Height });
}
#endregion
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
System.Diagnostics.Stopwatch swCL = new System.Diagnostics.Stopwatch();
sw.Start();
//computes threshold
kernelThreshold.Execute(new CLCalc.Program.MemoryObject[] { CLcfgVars, CLbmpSrc, CLthreshInfo, CLbmpThresh }, new int[] { bmp.Width, bmp.Height });
if (!doRender)
{
return;
}
//Reuse last render?
if (ReUseLastRender)
{
CLTotalPixWeight.WriteToDevice(lastPixWeight);
CLimgFinal1.WriteBitmap(lastImage);
}
else
{
lastRenderedIdx = 0;
}
//generates images for points
for (int i = lastRenderedIdx; i < Colors.Count; i++)
{
Bitmap bmpStroke = new Bitmap(bmp.Width, bmp.Height);
if (Points[i].Count > 1)
{
if (DistanceMaps[i] == null)
{
Graphics g2 = Graphics.FromImage(bmpStroke);
g2.DrawLines(new Pen(Colors[i], 2), Points[i].ToArray());
CLbmpStroke.WriteBitmap(bmpStroke);
int[] changed = new int[] { 0 };
swCL.Start();
changed[0] = 1;
kernelinitWeight.Execute(new CLCalc.Program.MemoryObject[] { CLWeight }, new int[] { CLbmpSrc.Width, CLbmpSrc.Height });
int n = 0;
while (changed[0] > 0 && n < MAXPROPAGITERS)
{
n++;
changed[0] = 0;
CLchanged.WriteToDevice(changed);
kernelPropagateDist.Execute(new CLCalc.Program.MemoryObject[] { CLchanged, CLbmpStroke, CLthreshInfo, CLWeight, CLbmpDists },
new int[] { CLbmpSrc.Width, CLbmpSrc.Height });
CLchanged.ReadFromDeviceTo(changed);
}
swCL.Stop();
DistanceMaps[i] = new float[CLWeight.OriginalVarLength];
CLWeight.ReadFromDeviceTo(DistanceMaps[i]);
}
else
{
CLWeight.WriteToDevice(DistanceMaps[i]);
}
//composes total weight
CLcolor.WriteToDevice(new float[] { (float)Colors[i].B, (float)Colors[i].G, (float)Colors[i].R });
kernelAddToTotalWeight.Execute(new CLCalc.Program.MemoryObject[] { CLTotalPixWeight, CLWeight, CLcolor, CLimgFinal1, CLimgFinal2, CLthreshInfo }, new int[] { CLbmpSrc.Width, CLbmpSrc.Height });
//swaps final images - result is always on CLimgFinal1
CLCalc.Program.Image2D temp = CLimgFinal1;
CLimgFinal1 = CLimgFinal2;
CLimgFinal2 = temp;
if (pb != null)
{
pb.Image = GetRenderedImage();
pb.Refresh();
}
}
bmpStroke.Dispose();
}
sw.Stop();
lastRenderedIdx = Colors.Count;
//saves total pixel weight and final image
CLTotalPixWeight.ReadFromDeviceTo(lastPixWeight);
if (lastImage != null)
{
lastImage.Dispose();
}
lastImage = CLimgFinal1.ReadBitmap();
}
